Big-eared opossum vs Birdbeak dogfish

Didelphis aurita compared with Deania calcea

Key Differences

• Big-eared opossum is Least Concern while Birdbeak dogfish is Near Threatened.

Taxonomic Classification

Rank	Big-eared opossum	Birdbeak dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Didelphimorphia (Didelphimorphia)	Squaliformes (Squaliformes)
Family	Didelphidae	Centrophoridae
Genus	Didelphis	Deania
Species	Didelphis aurita	Deania calcea

Evolutionary Relationship

Big-eared opossum and Birdbeak dogfish share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big-eared opossum

LC — Least Concern

Birdbeak dogfish

NT — Near Threatened

Physical Characteristics

Attribute	Big-eared opossum	Birdbeak dogfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Birdbeak dogfish

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile, Norway, and Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Birdbeak dogfish

The Birdbeak dogfish (Deania calcea) is a species in the genus Deania. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.